Solution Found!
The mineral galena is composed of lead(II) sulfide and has
Chapter 3, Problem 22P(choose chapter or problem)
The mineral galena is composed of lead(II) sulfide and has an average density of 7.46 g/cm3 (a) How many moles of lead(II) sulfide are in 1.00 ft3 of galena? (b) How many lead atoms are in 1.00 dm3 of galena?
Questions & Answers
QUESTION: Problem 22P
The mineral galena is composed of lead(II) sulfide and has an average density of 7.46 g/cm3 (a) How many moles of lead(II) sulfide are in 1.00 ft3 of galena? (b) How many lead atoms are in 1.00 dm3 of galena?
ANSWER:
Problem 22P
Problem 22P
The mineral galena is composed of lead(II) sulfide and has an average density of 7.46 g/cm3 (a) How many moles of lead(II) sulfide are in 1.00 ft3 of galena? (b) How many lead atoms are in 1.00 dm3 of galena?
Step by ste solution
Step 1 of 2
(a)
Calculate the mass of lead(II) sulfide.
Mass can be calculated by the following formula.
.........................(1)
From the given,
The density of lead(II) sulfide =
Volume =
Let’s convert the cubic foot to cubic centimeters.
Substitute these values into equation (1)
|
Hence, the mass of lead(II) sulfide is .
Let’s calculate the number of moles of lead (II) sulfide.
Mass of lead (II) sulfide =
Molar mass of lead(II) sulfide = 239.25 g/mol
Therefore, the number of moles of lead(II) sulfide is 882 mol.
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